SUSE-SU-2021:14714-1: important: Security update for bind

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for bind
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:14714-1
Rating:             important
References:         #1185345 
Cross-References:   CVE-2021-25214 CVE-2021-25215 CVE-2021-25216
                   
CVSS scores:
                    CVE-2021-25214 (SUSE): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-25215 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-25216 (SUSE): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Server 11-SP4-LTSS
                    SUSE Linux Enterprise Point of Sale 11-SP3
                    SUSE Linux Enterprise Debuginfo 11-SP4
                    SUSE Linux Enterprise Debuginfo 11-SP3
______________________________________________________________________________

   An update that fixes three vulnerabilities is now available.

Description:

   This update for bind fixes the following issues:

   - CVE-2021-25214: Fixed a broken inbound incremental zone update (IXFR)
     which could have caused named to terminate unexpectedly (bsc#1185345).
   - CVE-2021-25215: Fixed an assertion check which could have failed while
     answering queries for DNAME records that required the DNAME to be
     processed to resolve itself (bsc#1185345).
   - CVE-2021-25216: Fixed an issue where policy negotiation can be targeted
     by a buffer overflow attack (bsc#1185345).


Patch Instructions:

   To install this SUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server 11-SP4-LTSS:

      zypper in -t patch slessp4-bind-14714=1

   - SUSE Linux Enterprise Point of Sale 11-SP3:

      zypper in -t patch sleposp3-bind-14714=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-bind-14714=1

   - SUSE Linux Enterprise Debuginfo 11-SP3:

      zypper in -t patch dbgsp3-bind-14714=1



Package List:

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):

      bind-9.9.6P1-0.51.26.1
      bind-chrootenv-9.9.6P1-0.51.26.1
      bind-doc-9.9.6P1-0.51.26.1
      bind-libs-9.9.6P1-0.51.26.1
      bind-utils-9.9.6P1-0.51.26.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (ppc64 s390x x86_64):

      bind-libs-32bit-9.9.6P1-0.51.26.1

   - SUSE Linux Enterprise Point of Sale 11-SP3 (i586):

      bind-9.9.6P1-0.51.26.1
      bind-chrootenv-9.9.6P1-0.51.26.1
      bind-devel-9.9.6P1-0.51.26.1
      bind-doc-9.9.6P1-0.51.26.1
      bind-libs-9.9.6P1-0.51.26.1
      bind-utils-9.9.6P1-0.51.26.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):

      bind-debuginfo-9.9.6P1-0.51.26.1
      bind-debugsource-9.9.6P1-0.51.26.1

   - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64):

      bind-debuginfo-9.9.6P1-0.51.26.1
      bind-debugsource-9.9.6P1-0.51.26.1


References:

   https://www.suse.com/security/cve/CVE-2021-25214.html
   https://www.suse.com/security/cve/CVE-2021-25215.html
   https://www.suse.com/security/cve/CVE-2021-25216.html
   https://bugzilla.suse.com/1185345